Nachweis der Zucker in den Thylakoiden von Rhodospirillum rubrum und Rhodopseudomonas viridis

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Abstract
The thylakoids (chromatophores) of the sulfur-free purple bacteria Rhodospirillum rubrum contain 30% lipids soluble in methanol-chloroform, 46% protein, and 14% carbohydrates. 90% of the total sugar content was glucose, 4% fucose, 5% rhamnose. In the thylakoids of Rhodopseudomonas viridis 3,3% sugar was demonstrable (50% glucose, 17% galactose, 15% rhamnose and 17% mannose). 2-keto-3-desoxy-octonate is a structure component in both organisms. After treatment of thylakoids with phenol/water, the main sugar fraction was in the water phase, although in both organisms 3 to 4% of the protein fraction in the phenol phase consists of sugar.

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